Which is cheaper, solar electricity or electricity generated by burning fossil fuels? The answer might surprise you.

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“Every second we pump air into our houses that is too hot, too cold or too moist. And then we spend billions of kilowatts treating that air; cooling it, heating it or dehumidifying it. If we could clean the air, we could recycle air that already has the perfect temperature,” explains Matthew Johnson, a professor at the University of Copenhagen, who invented “CleanAir”, the device that acts like an all-in-one dehumidifier, cooler, heater, and cleaner.

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Designers have come up with a new portable wind turbine that is very easy to be transported and put into function by just one person. Dubbed the “Mobile Wind Turbine”, it includes a hybrid carrier that uses electricity harnessed from wind energy to run.

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